比尔曾（荷兰语：Bilzen）是位于比利时林堡省部的一座城市，人口30,057人（2006年）。

• 金·克莱斯特尔斯 (Kim Clijsters)

Bilzen is a town and a municipality located in the Belgian province of Limburg.

On January 1, 2006, Bilzen had a total population of 30,057. The total area is 75.90 km² which gives a population density of 396 inhabitants per km².

Bilzen consists of the city of Bilzen and the following villages: Beverst, Eigenbilzen, Grote-Spouwen, Hees, Hoelbeek, Kleine-Spouwen, Martenslinde, Mopertingen, Munsterbilzen, Rijkhoven, Rosmeer, and Waltwilder. It was in 1977 that they all became part of the municipality Bilzen because of the fusion of municipalities.